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-rw-r--r--source3/Makefile.in3
-rw-r--r--source3/lib/smbconf/smbconf.h4
-rw-r--r--source3/lib/smbconf/smbconf_txt_simple.c520
3 files changed, 526 insertions, 1 deletions
diff --git a/source3/Makefile.in b/source3/Makefile.in
index 7b664d0605..c6e3af0ecf 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -826,7 +826,8 @@ LIBNETAPI_OBJ = $(LIBNETAPI_OBJ1) $(LIBNET_OBJ) \
$(SECRETS_OBJ) $(PASSDB_OBJ) @LIBWBCLIENT_STATIC@ $(SMBLDAP_OBJ) $(GROUPDB_OBJ) $(LDB_OBJ) \
$(DCUTIL_OBJ) $(LIBADS_OBJ) $(PRIVILEGES_BASIC_OBJ)
-LIBSMBCONF_OBJ = lib/smbconf/smbconf.o lib/smbconf/smbconf_reg.o
+LIBSMBCONF_OBJ = lib/smbconf/smbconf.o lib/smbconf/smbconf_reg.o \
+ lib/smbconf/smbconf_txt_simple.o
LIBNET_OBJ = libnet/libnet_join.o \
librpc/gen_ndr/ndr_libnet_join.o
diff --git a/source3/lib/smbconf/smbconf.h b/source3/lib/smbconf/smbconf.h
index 23b9504971..72729b9df8 100644
--- a/source3/lib/smbconf/smbconf.h
+++ b/source3/lib/smbconf/smbconf.h
@@ -38,6 +38,10 @@ struct smbconf_csn {
WERROR smbconf_init_reg(TALLOC_CTX *mem_ctx, struct smbconf_ctx **conf_ctx,
const char *path);
+WERROR smbconf_init_txt_simple(TALLOC_CTX *mem_ctx,
+ struct smbconf_ctx **conf_ctx,
+ const char *path);
+
/*
* the smbconf API functions
*/
diff --git a/source3/lib/smbconf/smbconf_txt_simple.c b/source3/lib/smbconf/smbconf_txt_simple.c
new file mode 100644
index 0000000000..4bd3eeeb2b
--- /dev/null
+++ b/source3/lib/smbconf/smbconf_txt_simple.c
@@ -0,0 +1,520 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * libsmbconf - Samba configuration library, simple text backend
+ * Copyright (C) Michael Adam 2008
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * This is a sample implementation of a libsmbconf text backend
+ * using the params.c parser.
+ *
+ * It is read only.
+ * Don't expect brilliant performance, since it is not hashing the lists.
+ */
+
+#include "includes.h"
+#include "smbconf_private.h"
+
+struct txt_private_data {
+ struct {
+ uint32_t current_share;
+ uint32_t num_shares;
+ char **share_names;
+ uint32_t *num_params;
+ char ***param_names;
+ char ***param_values;
+ } cache;
+ uint64_t csn;
+};
+
+/**********************************************************************
+ *
+ * helper functions
+ *
+ **********************************************************************/
+
+/**
+ * a convenience helper to cast the private data structure
+ */
+static struct txt_private_data *pd(struct smbconf_ctx *ctx)
+{
+ return (struct txt_private_data *)(ctx->data);
+}
+
+static bool smbconf_txt_find_in_array(const char *string, char **list,
+ uint32_t num_entries, uint32_t *entry)
+{
+ uint32_t i;
+
+ if ((string == NULL) || (list == NULL)) {
+ return false;
+ }
+
+ for (i = 0; i < num_entries; i++) {
+ if (strequal(string, list[i])) {
+ if (entry != NULL) {
+ *entry = i;
+ }
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static bool smbconf_txt_do_section(const char *section, void *private_data)
+{
+ WERROR werr;
+ uint32_t idx;
+ struct txt_private_data *data = (struct txt_private_data *)private_data;
+
+ if (smbconf_txt_find_in_array(section, data->cache.share_names,
+ data->cache.num_shares, &idx))
+ {
+ data->cache.current_share = idx;
+ return true;
+ }
+
+ werr = smbconf_add_string_to_array(data, &(data->cache.share_names),
+ data->cache.num_shares, section);
+ if (!W_ERROR_IS_OK(werr)) {
+ return false;
+ }
+ data->cache.current_share = data->cache.num_shares;
+ data->cache.num_shares++;
+
+ data->cache.param_names = TALLOC_REALLOC_ARRAY(data,
+ data->cache.param_names,
+ char **,
+ data->cache.num_shares);
+ if (data->cache.param_names == NULL) {
+ return false;
+ }
+ data->cache.param_names[data->cache.current_share] = NULL;
+
+ data->cache.param_values = TALLOC_REALLOC_ARRAY(data,
+ data->cache.param_values,
+ char **,
+ data->cache.num_shares);
+ if (data->cache.param_values == NULL) {
+ return false;
+ }
+ data->cache.param_values[data->cache.current_share] = NULL;
+
+ data->cache.num_params = TALLOC_REALLOC_ARRAY(data,
+ data->cache.num_params,
+ uint32_t,
+ data->cache.num_shares);
+ if (data->cache.num_params == NULL) {
+ return false;
+ }
+ data->cache.num_params[data->cache.current_share] = 0;
+
+ return true;
+}
+
+static bool smbconf_txt_do_parameter(const char *param_name,
+ const char *param_value,
+ void *private_data)
+{
+ WERROR werr;
+ char **param_names, **param_values;
+ uint32_t num_params;
+ uint32_t idx;
+ struct txt_private_data *data = (struct txt_private_data *)private_data;
+
+ if (data->cache.num_shares == 0) {
+ /* not in any share ... */
+ return false;
+ }
+
+ param_names = data->cache.param_names[data->cache.current_share];
+ param_values = data->cache.param_values[data->cache.current_share];
+ num_params = data->cache.num_params[data->cache.current_share];
+
+ if (smbconf_txt_find_in_array(param_name, param_names, num_params,
+ &idx))
+ {
+ TALLOC_FREE(param_values[idx]);
+ param_values[idx] = talloc_strdup(data, param_value);
+ if (param_values[idx] == NULL) {
+ return false;
+ }
+ return true;
+ }
+ werr = smbconf_add_string_to_array(data,
+ &(data->cache.param_names[data->cache.current_share]),
+ num_params, param_name);
+ if (!W_ERROR_IS_OK(werr)) {
+ return false;
+ }
+ werr = smbconf_add_string_to_array(data,
+ &(data->cache.param_values[data->cache.current_share]),
+ num_params, param_value);
+ data->cache.num_params[data->cache.current_share]++;
+ return W_ERROR_IS_OK(werr);
+}
+
+static WERROR smbconf_txt_load_file(struct smbconf_ctx *ctx)
+{
+ uint64_t new_csn = (uint64_t)file_modtime(ctx->path);
+
+ if (new_csn == pd(ctx)->csn) {
+ return WERR_OK;
+ }
+
+ TALLOC_FREE(pd(ctx)->cache.share_names);
+ pd(ctx)->cache.current_share = 0;
+ pd(ctx)->cache.num_shares = 0;
+ TALLOC_FREE(pd(ctx)->cache.param_names);
+ TALLOC_FREE(pd(ctx)->cache.param_values);
+ TALLOC_FREE(pd(ctx)->cache.num_params);
+
+ if (!pm_process(ctx->path, smbconf_txt_do_section,
+ smbconf_txt_do_parameter, pd(ctx)))
+ {
+ return WERR_CAN_NOT_COMPLETE;
+ }
+
+ pd(ctx)->csn = new_csn;
+
+ return WERR_OK;
+}
+
+
+/**********************************************************************
+ *
+ * smbconf operations: simple text implementations
+ *
+ **********************************************************************/
+
+/**
+ * initialize the text based smbconf backend
+ */
+static WERROR smbconf_txt_init(struct smbconf_ctx *ctx, const char *path)
+{
+ if (path == NULL) {
+ path = get_dyn_CONFIGFILE();
+ }
+ ctx->path = talloc_strdup(ctx, path);
+ if (ctx->path == NULL) {
+ return WERR_NOMEM;
+ }
+
+ ctx->data = TALLOC_ZERO_P(ctx, struct txt_private_data);
+
+ return smbconf_txt_load_file(ctx);
+}
+
+static int smbconf_txt_shutdown(struct smbconf_ctx *ctx)
+{
+ return ctx->ops->close_conf(ctx);
+}
+
+static WERROR smbconf_txt_open(struct smbconf_ctx *ctx)
+{
+ return smbconf_txt_load_file(ctx);
+}
+
+static int smbconf_txt_close(struct smbconf_ctx *ctx)
+{
+ return 0;
+}
+
+/**
+ * Get the change sequence number of the given service/parameter.
+ * service and parameter strings may be NULL.
+ */
+static void smbconf_txt_get_csn(struct smbconf_ctx *ctx,
+ struct smbconf_csn *csn,
+ const char *service, const char *param)
+{
+ if (csn == NULL) {
+ return;
+ }
+
+ csn->csn = (uint64_t)file_modtime(ctx->path);
+}
+
+/**
+ * Drop the whole configuration (restarting empty)
+ */
+static WERROR smbconf_txt_drop(struct smbconf_ctx *ctx)
+{
+ return WERR_NOT_SUPPORTED;
+}
+
+/**
+ * get the list of share names defined in the configuration.
+ */
+static WERROR smbconf_txt_get_share_names(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ uint32_t *num_shares,
+ char ***share_names)
+{
+ uint32_t count;
+ uint32_t added_count = 0;
+ TALLOC_CTX *tmp_ctx = NULL;
+ WERROR werr = WERR_OK;
+ char **tmp_share_names = NULL;
+
+ if ((num_shares == NULL) || (share_names == NULL)) {
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ werr = smbconf_txt_load_file(ctx);
+ if (!W_ERROR_IS_OK(werr)) {
+ return werr;
+ }
+
+ tmp_ctx = talloc_stackframe();
+ if (tmp_ctx == NULL) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+
+ /* make sure "global" is always listed first */
+ if (smbconf_share_exists(ctx, GLOBAL_NAME)) {
+ werr = smbconf_add_string_to_array(tmp_ctx, &tmp_share_names,
+ 0, GLOBAL_NAME);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+ added_count++;
+ }
+
+ for (count = 0; count < pd(ctx)->cache.num_shares; count++) {
+ if (strequal(pd(ctx)->cache.share_names[count], GLOBAL_NAME)) {
+ continue;
+ }
+
+ werr = smbconf_add_string_to_array(tmp_ctx, &tmp_share_names,
+ added_count,
+ pd(ctx)->cache.share_names[count]);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+ added_count++;
+ }
+
+ *num_shares = added_count;
+ if (added_count > 0) {
+ *share_names = talloc_move(mem_ctx, &tmp_share_names);
+ } else {
+ *share_names = NULL;
+ }
+
+done:
+ TALLOC_FREE(tmp_ctx);
+ return werr;
+}
+
+/**
+ * check if a share/service of a given name exists
+ */
+static bool smbconf_txt_share_exists(struct smbconf_ctx *ctx,
+ const char *servicename)
+{
+ WERROR werr;
+
+ werr = smbconf_txt_load_file(ctx);
+ if (!W_ERROR_IS_OK(werr)) {
+ return false;
+ }
+
+ return smbconf_txt_find_in_array(servicename,
+ pd(ctx)->cache.share_names,
+ pd(ctx)->cache.num_shares, NULL);
+}
+
+/**
+ * Add a service if it does not already exist
+ */
+static WERROR smbconf_txt_create_share(struct smbconf_ctx *ctx,
+ const char *servicename)
+{
+ return WERR_NOT_SUPPORTED;
+}
+
+/**
+ * get a definition of a share (service) from configuration.
+ */
+static WERROR smbconf_txt_get_share(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *servicename,
+ uint32_t *num_params,
+ char ***param_names, char ***param_values)
+{
+ WERROR werr;
+ uint32_t sidx, count;
+ bool found;
+ TALLOC_CTX *tmp_ctx = NULL;
+ char **tmp_param_names = NULL;
+ char **tmp_param_values = NULL;
+
+ werr = smbconf_txt_load_file(ctx);
+ if (!W_ERROR_IS_OK(werr)) {
+ return werr;
+ }
+
+ found = smbconf_txt_find_in_array(servicename,
+ pd(ctx)->cache.share_names,
+ pd(ctx)->cache.num_shares,
+ &sidx);
+ if (!found) {
+ return WERR_NO_SUCH_SERVICE;
+ }
+
+ tmp_ctx = talloc_stackframe();
+ if (tmp_ctx == NULL) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+
+ for (count = 0; count < pd(ctx)->cache.num_params[sidx]; count++) {
+ werr = smbconf_add_string_to_array(tmp_ctx,
+ &tmp_param_names,
+ count,
+ pd(ctx)->cache.param_names[sidx][count]);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+ werr = smbconf_add_string_to_array(tmp_ctx,
+ &tmp_param_values,
+ count,
+ pd(ctx)->cache.param_values[sidx][count]);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+ }
+
+ *num_params = count;
+ if (count > 0) {
+ *param_names = talloc_move(mem_ctx, &tmp_param_names);
+ *param_values = talloc_move(mem_ctx, &tmp_param_values);
+ } else {
+ *param_names = NULL;
+ *param_values = NULL;
+ }
+
+done:
+ TALLOC_FREE(tmp_ctx);
+ return werr;
+}
+
+/**
+ * delete a service from configuration
+ */
+static WERROR smbconf_txt_delete_share(struct smbconf_ctx *ctx,
+ const char *servicename)
+{
+ return WERR_NOT_SUPPORTED;
+}
+
+/**
+ * set a configuration parameter to the value provided.
+ */
+static WERROR smbconf_txt_set_parameter(struct smbconf_ctx *ctx,
+ const char *service,
+ const char *param,
+ const char *valstr)
+{
+ return WERR_NOT_SUPPORTED;
+}
+
+/**
+ * get the value of a configuration parameter as a string
+ */
+static WERROR smbconf_txt_get_parameter(struct smbconf_ctx *ctx,
+ TALLOC_CTX *mem_ctx,
+ const char *service,
+ const char *param,
+ char **valstr)
+{
+ WERROR werr;
+ bool found;
+ uint32_t share_index, param_index;
+
+ werr = smbconf_txt_load_file(ctx);
+ if (!W_ERROR_IS_OK(werr)) {
+ return werr;
+ }
+
+ found = smbconf_txt_find_in_array(service,
+ pd(ctx)->cache.share_names,
+ pd(ctx)->cache.num_shares,
+ &share_index);
+ if (!found) {
+ return WERR_NO_SUCH_SERVICE;
+ }
+
+ found = smbconf_txt_find_in_array(param,
+ pd(ctx)->cache.param_names[share_index],
+ pd(ctx)->cache.num_params[share_index],
+ &param_index);
+ if (!found) {
+ return WERR_INVALID_PARAM;
+ }
+
+ *valstr = talloc_strdup(mem_ctx,
+ pd(ctx)->cache.param_values[share_index][param_index]);
+
+ if (*valstr == NULL) {
+ return WERR_NOMEM;
+ }
+
+ return WERR_OK;
+}
+
+/**
+ * delete a parameter from configuration
+ */
+static WERROR smbconf_txt_delete_parameter(struct smbconf_ctx *ctx,
+ const char *service,
+ const char *param)
+{
+ return WERR_NOT_SUPPORTED;
+}
+
+static struct smbconf_ops smbconf_ops_txt = {
+ .init = smbconf_txt_init,
+ .shutdown = smbconf_txt_shutdown,
+ .open_conf = smbconf_txt_open,
+ .close_conf = smbconf_txt_close,
+ .get_csn = smbconf_txt_get_csn,
+ .drop = smbconf_txt_drop,
+ .get_share_names = smbconf_txt_get_share_names,
+ .share_exists = smbconf_txt_share_exists,
+ .create_share = smbconf_txt_create_share,
+ .get_share = smbconf_txt_get_share,
+ .delete_share = smbconf_txt_delete_share,
+ .set_parameter = smbconf_txt_set_parameter,
+ .get_parameter = smbconf_txt_get_parameter,
+ .delete_parameter = smbconf_txt_delete_parameter
+};
+
+
+/**
+ * initialize the smbconf text backend
+ * the only function that is exported from this module
+ */
+WERROR smbconf_init_txt_simple(TALLOC_CTX *mem_ctx,
+ struct smbconf_ctx **conf_ctx,
+ const char *path)
+{
+ return smbconf_init(mem_ctx, conf_ctx, path, &smbconf_ops_txt);
+}
generated by cgit (git 2.34.1) at 2024-07-17 14:24:54 +0000